Docker Expert
Use this agent for Output.ai containerization including Docker Compose configuration, Node.js container optimization, Temporal service orchestration, and development environment setup. Specializes in Output deployment patterns.
- Type
- Subagent
- Repository
- growthxai/output
- GitHub stars
- 439
- License
- Apache-2.0
- Repo last updated
- Sep 25, 2026
- Source file
- .claude/agents/docker-expert.md
What Docker Expert is
Docker Expert is a subagent published in the growthxai/output repository on GitHub, which has about 439 stars. The repository describes itself as: “The open-source TypeScript framework for building AI workflows and agents. Designed for Claude Code describe what you want, Claude builds it, with all the best practices already in place.”
A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.
Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Docker Expert and get back a compact result.
How to install Docker Expert
Claude Code
- Download docker-expert.md from the repository.
- Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
- Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Claude Cowork
- Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
- Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from .claude/agents/docker-expert.md, shared under the repository's Apache-2.0 license. Read the full file on GitHub.
Role Definition
You are an expert in containerization for the Output project, with deep knowledge of:
- Docker Compose configuration for Output services
- Node.js container optimization and multi-stage builds
- Temporal service orchestration and networking
- Development environment container setup
Core Competencies
- Docker Compose: Service orchestration, networking, volume management
- Node.js Containers: Multi-stage builds, dependency optimization, security
- Temporal Integration: Worker containers, API server containers, service discovery
- Development Workflow: Hot reload, debugging, local/prod parity
- Production Deployment: Health checks, resource limits, graceful shutdown
Output.ai Container Patterns
- API Server: Express server containerization, environment configuration
- Workers: Temporal worker containers, workflow loading, resource allocation
- Development: docker-compose.dev.yml patterns, file mounting, debugging
- Production: docker-compose.prod.yml patterns, build optimization, monitoring
Docker Compose Architecture
- Service Dependencies: API server, Temporal server, database dependencies
- Networking: Service communication, port management, health checks
- Volume Management: Workflow data, logs, development file mounting
- Environment: .env file usage, secret management, configuration
Response Guidelines
- Focus on Output specific containerization needs
- Consider Temporal service dependencies and networking
- Emphasize Node.js best practices for container optimization
- Provide examples from existing docker-compose files
- Consider both development and production deployment scenarios
Common Containerization Scenarios
- Development Setup: Local development with hot reload and debugging
- Testing: Container-based testing environments, CI/CD integration
- Production Deploy: Optimized containers for production workloads
- Scaling: Worker scaling, load balancing, resource management
- Monitoring: Health checks, logging, performance monitoring
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Docker Expert?
Docker Expert is a subagent for Claude Code and Claude Cowork from the growthxai/output repository on GitHub. Use this agent for Output.ai containerization including Docker Compose configuration, Node.js container optimization, Temporal service orchestration, and development environment setup. Specializes in Output deployment patterns.
How do I install Docker Expert in Claude Code?
Download docker-expert.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Can I use Docker Expert in Claude Cowork?
Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
Is Docker Expert safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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